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العنوان
EFFECT OF SPRAY WITH SOME VEGETABLE
SPROUT EXTRACTS ON YIELD, QUALITY,
AND MICROBIAL LOAD OF SOME
LEAFY VEGETABLES CROPS /
المؤلف
REFAIE ,HANY EL-SAYED MOHAMED .
هيئة الاعداد
باحث / HANY EL-SAYED MOHAMED REFAIE
مشرف / Fathy Abo El- Nasr Abo Sedera
مشرف / Mohamed Hashem El-Deeb
مشرف / Ahmed Abou El-Yazied Ahmed Abd El-Hafez
تاريخ النشر
2016
عدد الصفحات
82p.;
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
الهندسة الزراعية وعلوم المحاصيل
تاريخ الإجازة
1/1/2016
مكان الإجازة
جامعة عين شمس - كلية الزراعة - محاصيل خضر
الفهرس
Only 14 pages are availabe for public view

from 85

from 85

Abstract

This study was conducted in the vegetable farm in clay soil, and
organic agriculture laboratory, Horticulture Department, Faculty of
Agriculture, Ain Shams University, during 20012 – 2014 for producing
seed sprouts and vegetable leafy crops ( lettuce , parsley , spinach ).
In the present study the effect of foliar spraying with animal blood
meal (pepton) and aqueous extracts of seed sprout (fenugreek, faba bean
and rocket) at three concentration (0, 1 , 2%) as well as their interaction
on growth, yield and quality of leafy vegetable (lettuce , parsley , spinach)
were evaluated . Also the study investigated the influence of pepton and
sprout extracts on each crop leaf microbial load. This experiment was
conducted in split plot design with four replicates where the sprouts
extract and pepton treatments distributed in the main plots and the
concentration treatments were located in the sub-plots.
The results obtained from this study can be summarized as follows:
Firstly: Effect of foliar spray with sprouts extract and pepton on
lettuce plant:
1) Using pepton (animal blood meal) as foliar spray increased
significantly lettuce plant growth characters compared with other
sprout extract. On the other hand green faba bean sprout (shoots)
extract as foliar spray recorded the lowest plant growth characters.
2) Chlorophyll content was a significantly increased by using pepton
as foliar spray at higher concentration (2%) followed by fenugreek
sprout extract at higher concentration in lettuce leaves.
3) Pepton as foliar spray significantly increased microbial load on
lettuce fresh leaves (cfu) at both concentration (1% and 2%).
4) Spraying with 2% fenugreek sprouts extract inhibited (0.0
cfu/20cm
2
) and significantly reduced (6.3 cfu/20cm
2
) microbial
load 10 or 70 days, after lettuce transplanting. 5) Pepton increased early and total yield per m
2
followed by
fenugreek and rocket sprout extracts. While the lowest total yield
was observed in faba bean green sprout extracts treatment.
6) Spraying lettuce plants with faba bean sprout extract increased
lettuce leaf fiber content followed by pepton spray, while the
lowest fiber content was obtained with rocket sprout extract.
7) Concerning nitrites and nitrate content (NO
2 and NO
3
) pepton
treatment exhibited the highest values, while it was lowest in case
of using fenugreek sprout extract (NO
2
) and faba bean sprouts
(NO
3
).
Secondly: Effect of foliar spray with sprouts extract and pepton on
parsley plant:
1) Using pepton (animal blood meal) and fenugreek sprouts extract
as foliar spray increased significantly parsley plant growth
characters compared with other sprout extract.
2) Chlorophyll content was a significantly affected by using pepton
as foliar spray at higher concentration (1% and 2%) followed by
fenugreek sprout extract at higher concentration.
3) Pepton as foliar spray significantly increased microbial load on
parsley fresh leaves (cfu/20cm
2
) at both concentration (1% and
2%) while spraying with 2% fenugreek sprouts extract inhibited
and significantly reduced microbial load after 10 and 70 days,
respectively.
4) Pepton increased yield per m
2
followed by fenugreek sprout
extracts. While the lowest yield was observed in faba bean green
sprout extracts treatment.
5) Spraying parsley plants with rocket sprout extract increased leaf
fiber content.
6) Concerning nitrites showed (NO
2
) and (No
3
), pepton treatment the
highest values 7) Vegetable seed sprouts extract increased total amino acids and
protein, while the lowest value was observed in pepton treatment.
Thirdly: Effect of foliar spray with sprouts extract and pepton on
spinach plant:
1) Using pepton (animal blood meal) and fenugreek sprouts extract
as foliar spray increased significantly spinach plant growth
characters compared with other sprout extract.
2) Chlorophyll content and yield was no significant effect of using
pepton and vegetable sprout extract.
3) Pepton as foliar spray significantly increased microbial load on
spinach fresh leaves (cfu/20cm
2
) at both concentration (1% and
2%) while spraying with 2% fenugreek sprouts extract inhibited
and significantly reduced microbial load after 10 and 45 days,
respectively.
4) Spraying spinach plants with faba bean sprout extract increased
leaf fiber content.
5) Concerning nitrites content (NO
2
) and nitrate content (No
3
),
showed pepton treatment the highest value recorded.
6) Vegetable seed sprouts extract increased total amino acids and
protein, while the lowest value was observed in pepton treatment.
In conclusion fenugreek sprout tissue may contain water soluble
compounds that extract stimulatory effect on the growth of lettuce,
parsley and spinach plants. Moreover fenugreek sprout extract may
contain also microbial inhibiter compounds released in water extract, in
contrast with pepton spray. Therefore its recommend use fenugreek
sprout extract on leafy vegetable crops (lettuce, parsley and spinach) and
instead of using pepton especially at higher extract concentration.